decimal

adjective
dec·​i·​mal | \ ˈde-sə-məl How to pronounce decimal (audio) , ˈdes-məl \

Definition of decimal

 (Entry 1 of 2)

: numbered or proceeding by tens:
a : based on the number 10 especially : expressed in or utilizing a decimal system especially with a decimal point
b : subdivided into 10th or 100th units decimal coinage

decimal

noun

Definition of decimal (Entry 2 of 2)

: any real number expressed in base 10 especially : decimal fraction

Other Words from decimal

Adjective

decimally \ ˈde-​sə-​mə-​lē How to pronounce decimal (audio) , ˈdes-​mə-​ \ adverb

Examples of decimal in a Sentence

Adjective In the number 8.901, the 9 is in the first decimal place. Noun The number 67.398 is a decimal. It is equal to the whole number 67 plus the decimal.398. Seven-tenths written as a decimal is .7. The decimal.2 is equal to the fraction 2/10.
Recent Examples on the Web: Adjective Like π and other transcendental numbers, e has an infinite decimal representation — its digits go on forever without any discernible pattern. Quanta Magazine, 27 Oct. 2021 Just use a $ to represent a decimal number: Both $64 and $-1055 are valid numbers. Andrew Hudson, Ars Technica, 14 Mar. 2022 In 2002, Kanada set a new record: π to 24 trillion decimal places. David Grossman, Popular Mechanics, 14 Mar. 2022 To apply 1 pound of nitrogen per 1,000 square feet divide 1 by the decimal equivalent of the nitrogen percentage on the bag (the first number). oregonlive, 29 Jan. 2022 The complications include two high-speed triple-axis tourbillions, a decimal minute repeater, a monopusher chronograph, and a reference time differential function. Demetrius Simms, Robb Report, 9 Dec. 2021 According to Powerball, the overall odds of winning a prize are 1 in 24.87, based on a $2 play and rounded to two decimal places. Emily Deletter, The Enquirer, 21 Dec. 2021 According to Powerball, the overall odds of winning a prize are 1 in 24.87, based on a $2 play and rounded to two decimal places. Emily Deletter, The Enquirer, 9 Dec. 2021 Last season seven teams eclipsed that mark, including the Nets and the Portland Trail Blazers, who finished mere decimal points behind Brooklyn at 117.1. The Salt Lake Tribune, 8 Dec. 2021 Recent Examples on the Web: Noun For example, if the team is +150, the decimal would be 150/100, or 1.5. Los Angeles Times, 30 Jan. 2022 There’s nothing tricky at this step—just round up if the decimal is 0.5 or higher, and round down otherwise. Dave Linkletter, Popular Mechanics, 7 Feb. 2020 Real examples and applications are messy, with ugly roots made of decimals or irrational numbers. Caroline Delbert, Popular Mechanics, 6 Dec. 2019 But for astronomers, decimals can make the difference between seeing something extraordinary and missing it. Author: Caleb Jones, Anchorage Daily News, 26 Aug. 2019 For example: If a dog is 3 years old, the natural log of 3 is 1.0986 (the decimals continue). Claudia Harmata, PEOPLE.com, 19 Nov. 2019 But for astronomers, decimals can make the difference between seeing something extraordinary and missing it. Author: Caleb Jones, Anchorage Daily News, 26 Aug. 2019 Irrational numbers have an infinite decimal expansion. Quanta Magazine, 17 Sep. 2018 Many people conceptualize irrational numbers by rounding them to fractions or decimals: estimating π as 3.14, which is equivalent to 157/50, leads to widespread celebration of Pi Day on March 14th. Leila Sloman, Scientific American, 16 Sep. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decimal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of decimal

Adjective

1608, in the meaning defined above

Noun

1651, in the meaning defined above

History and Etymology for decimal

Adjective

French décimal, from Medieval Latin decimalis of a tithe, from Latin decima tithe — more at dime

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Time Traveler for decimal

Time Traveler

The first known use of decimal was in 1608

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Dictionary Entries Near decimal

decillion

decimal

decimal arithmetic

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Statistics for decimal

Last Updated

12 May 2022

Cite this Entry

“Decimal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decimal. Accessed 3 Jul. 2022.

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More Definitions for decimal

decimal

adjective
dec·​i·​mal | \ ˈde-sə-məl How to pronounce decimal (audio) , ˈdes-məl \

Kids Definition of decimal

 (Entry 1 of 2)

1 : based on the number 10 : numbered or counting by tens We use a decimal system of writing numbers.
2 : expressed in or including a decimal The decimal form of ¹/₄ is .25.

decimal

noun

Kids Definition of decimal (Entry 2 of 2)

: a proper fraction in which the denominator is 10 or 10 multiplied one or more times by itself and is indicated by a point placed at the left of the numerator the decimal .2=²/₁₀, the decimal .25=²⁵/₁₀₀, the decimal .025=²⁵/₁₀₀₀

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